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oldcorollas
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Kita-Ku, Sapporo, Japan
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January 2003

Re: Videos and pictures of a running Bourke Engine...

Wed, 26 October 2005 05:34

Shraka wrote on Wed, 26 October 2005 12:15

If you could run the Hydrogen mixture a lot more lean (like this Bourke Engine is supposed to be run) you MAY be able to get the hydrogen use down to something a bit more reasonable.

As for the delivery of the fuel, could you deliver it in a highly compressed form to keep it a liquid rather than cooling it down? I'm not sure if that's viable, but I know having a laser guided fuel arm at every servo definatly ISN'T viable.

Hydrogen IS being explored as an alternative to petrol by people far smarter than you or I. So going off on a tangent about how "the only reason you'd have hydrogen-powered cars is if they have fuel cells" was presumptuous.

1) energy content is energy content. regardless of the AFR, you need a certain amount of "energy" to do a certain amount of "work". by running lean you are increasing the amount of "non-combatant" Razz

gas particles in the combustion chamber.. and it is the expansion from heat that makes motors go.. not the change in the number of molecules

i did a calc a while back.. roughly.. and when you burn petrol in air at the stoichiometric ratio, you only end up with a 5% increase in volume (at room temp). to get it to do any work, you need to convert the heat released into pressure..

which is another reason the bourke engine shits me... no temperature = no pressure = no work. higher temp means more pressure = more work = more efficiency.
which is why i do what i do Wink

materials for higher temperatures..

2. hydrogen pressure near liquid is very high...... much more convenient to deliver as liquid.... but of course then you need to keep it at liquid temperature... don't you need to use liquid helium or some such to liquify hydrogen? anyway. your normal freezer isn't goign to cut it... and what happens when the car sits in a parking lot on a summers dy.. the liquid H2 will heat up and it will heat up and the vapour pressure will increase... it wants to Razz

binding of hydrogen to various things is best way to go so far, but needs high density of hydrogen storage, MUST be easily reversible, and must be safe.. ie stable.. no point releasing hydrogen if you don't have the containment for it.. and releasing it to atmosphere (think.. garage) is not safe.

3) H2 is a clean fuel for IC engines, regardless of the overall efficiency or whatnot... fuel cell is far more efficient and is the way to go... basically...

and the original poster is a psychotic nutter who needs medication and lots of tinfoil Wink

ban ban ban.. he'll only come back and post about the bourke engine with his pseudofacts again anyway...

ahhh, new forums are good.. no wookies Razz

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